US Patent: 441,188
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| Pipe Wrench
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Patentee:
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| William E. Murbarger (exact or similar names) - Indianapolis, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 19, 1889 |
| Granted: |
Nov. 25, 1890 |
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Patent Pictures:
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William E. Murbarger patent November 25, 1890 |
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Stan Schulz
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Description: |
| The patent is for the swinging handle with its cam end inside the frame carrying the adjustable jaw. The patent describes how this handle would interact with the rack and pawl quick-adjust and the screw adjust jaws shown in the two variants. |
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